Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 8.5, Problem 1MQ
- How does attachment contribute to virus–host specificity?
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Chapter 8 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 8.1 - How does a virus differ from a cell?Ch. 8.1 - Why does a virus need a host cell?Ch. 8.1 - Compared with cells, what is unusual about viral...Ch. 8.1 - Once inside a host prokaryotic cell, what are the...Ch. 8.2 - Distinguish between a capsid and a capsomere. What...Ch. 8.2 - What is the difference between a naked virus and...Ch. 8.2 - What kinds of enzymes can be found within the...Ch. 8.2 - Where does the envelope surrounding animal viruses...Ch. 8.3 - What is packaged into capsids during maturation?Ch. 8.3 - Explain the term burst size.
Ch. 8.3 - Prob. 3MQCh. 8.3 - Why does a one-step growth curve differ in shape...Ch. 8.4 - What is meant by a viral titer?Ch. 8.4 - What is a plaque-forming unit?Ch. 8.4 - What is meant by the term plating efficiency?Ch. 8.4 - Describe the events that occur on an agar plate...Ch. 8.5 - How does attachment contribute to virushost...Ch. 8.5 - Prob. 2MQCh. 8.5 - Prob. 3MQCh. 8.5 - What is required for a bacteriophage T4 virion to...Ch. 8.6 - Prob. 1MQCh. 8.6 - Give one example each of T4 early, middle, and...Ch. 8.6 - What is required to package the T4 genome into its...Ch. 8.6 - Bacteriophage T4 lacks its own RNA polymerase. How...Ch. 8.7 - What is a lysogen and what is a prophage?Ch. 8.7 - How does DNA replication in lambda differ from...Ch. 8.7 - What commits lambda to the lytic versus the...Ch. 8.7 - What enzyme is required to form a prophage, and...Ch. 8.8 - Prob. 1MQCh. 8.8 - What is the difference between a persistent and a...Ch. 8.8 - Prob. 3MQCh. 8.8 - Why can it be said that the retrovirus genome is...Ch. 8 - What causes the viral plaques that appear on a...Ch. 8 - The promoters on genes encoding early proteins in...Ch. 8 - Under some conditions, it is possible to obtain...
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- How to distinguish the host cellular receptors are functional in virus attachment or virus entry ?arrow_forwardWhere do - ss RNA viruses assemble? O 1) golgi O 2) nucleus O3) cytoplasm O 4) both the nucleus and cytoplasm O 5) Endoplasmic reticulum Type:Sarrow_forwardWhat is the function of the Matrix protein during rabies virus pathogenesis?arrow_forward
- . Disabling surface protease enzymes on lung cells would most likely interfere with what stage of viral reproduction? A). Viral RNA replication. B). Virus binding to the host cell. C). Formation of new virus membranes in the host cell. D). Creation of new spike protein.arrow_forwardIn electron micrographs of HSV infection, it can be seen that the intact virus initially reacts with cell-surface proteoglycans, then with specific receptors. This is later followed by viral capsids docking with nuclear pores. Afterward, the capsids go from being full to being "empty." Which of the following statements best fits these observations? The viral envelope is not required for infectivity, since the envelope does not enter the nucleus. The viral envelope mediates entry into the cell, the capsid mediates entry into the nuclear membrane, and the genome is all that enters the nucleus. Only the genetic material of the virus is involved in the cell's infectivity, and is injected into the host cell like the genome of a phage. Viral capsids are needed for the cell to become infected; since the full capsids enter the nucleus.arrow_forwardWhat is meant when it is said that a virus is in an inactive state?arrow_forward
- Host specificity of a virus is due to O 1) similarities in size between the virus and the host cell. O 2) the presence or absence of a cell wall on the host cell. O 3) particular genes that it shares with the infected cell. 4) compatibility between viral and cellular surface molecules. 5) the presence of an envelope.arrow_forwardIn what part of the host cell does a herpesvirus genome replicate? Where does the viral genome reside during a latent infection?arrow_forwardWhat is the basic structure of the HIV virus? What is the function of the glycoproteins of its envelope?arrow_forward
- Why are viruses considered “obligate intracellular parasites”? What does it mean to be “obligate”?arrow_forwardIs a prion always pathogenic? Explain how or why.arrow_forwardWhich statement is true of viral replication? A) virus attaches to a specific receptor site on the host-cell membrane. B) Once inside the cell, the viral capsid is degraded, and the viral nucleic acid is released. C) Virus uses the host cell’s machinery to replicate and new virus particles are released. D) All of the abovearrow_forward
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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY